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45 possible causes of 'Altered consciousness'

1. Consciousness Decreased
Alertness and being oriented to place and time are major characteristics of consciousness. Alertness means th...

Symptoms:

  • Altered consciousness
2. Delirium
Delirium is an abrupt change in the brain that causes mental confusion and emotional disruption. It makes it ...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Impaired abstract thinking
  • Illusions
  • Euphoric mood
  • Racing thoughts
  • Altered consciousness
3. Epilepsy Overview
The types of epilepsy include Juvenile Myoclonic, Benign Rolandic, Reflex, West Syndrome, Lennox-Gastaut Synd...

Symptoms:

  • Visual aura
  • Tongue biting
  • Urinary incontinence
  • Nausea
  • Altered consciousness
4. Sepsis
Sepsis is a life-threatening complication of infection. It often occurs in people who are elderly or have wea...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Fast heart rate
  • Tremor
  • Delirium
  • Rapid shallow breathing
  • Altered consciousness
5. Organic Brain Syndrome
Organic brain syndrome (OBS) is a general term for decreases in mental function that are not caused by a psyc...

Symptoms:

  • Hard to awaken
  • Aggression
  • Impaired self-care
  • Combative behavior
  • Altered consciousness
6. Subarachnoid hemorrhage
Subarachnoid hemorrhage (SAH) refers to bleeding within the subarachnoid space, which is the area between the...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Pain
  • Stiff neck
  • Loss of vision in one half of the visual field
  • Blindness
  • Altered consciousness
7. Meningococcemia
Meningococcemia is a bacterial infection caused by the Neisseria meningitides bacteria. This is the same type...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Anemia
  • Altered consciousness
  • Bleeding skin rash
  • Nail problem
  • Black and blue marks
8. Brain Aneurysm
A brain aneurysm is a weakness in the wall of an artery within the brain. The main arteries that supply the ...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Numbness of foot
  • Droopy eyelid
  • Unable to control emotions
  • Nausea
  • Altered consciousness
9. Intracerebral Hemorrhage
An intracerebral hemorrhage (ICH) occurs when blood suddenly bursts into brain tissue, causing damage to the ...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Loss of balance
  • Increase in blood pressure
  • Slow heart rate
  • Motor tic
  • Altered consciousness
10. Dissection of the Aorta
The aorta is a large artery that carries blood out of your heart. If you experience a dissection of the aorta...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Yawning, excessive
  • Abdominal pain radiating to the back
  • Dry mouth
  • Mobility limitation
  • Altered consciousness
This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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